400000429 has 8 divisors (see below), whose sum is σ = 441944640. Its totient is φ = 360102336.

The previous prime is 400000411. The next prime is 400000457. The reversal of 400000429 is 924000004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 400000429 - 2⁷ = 400000301 is a prime.

It is a Duffinian number.

400000429 is a modest number, since divided by 429 gives 400 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400000499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 511119 + ... + 511900.

It is an arithmetic number, because the mean of its divisors is an integer number (55243080).

Almost surely, 2^400000429 is an apocalyptic number.

It is an amenable number.

400000429 is a deficient number, since it is larger than the sum of its proper divisors (41944211).

400000429 is a wasteful number, since it uses less digits than its factorization.

400000429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023059.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 400000429 is about 20000.0107249971. The cubic root of 400000429 is about 736.8065631362.

The spelling of 400000429 in words is "four hundred million, four hundred twenty-nine", and thus it is an aban number.